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December 1 – January 16

Phius Certified Trades Professional - Enclosure Specialist Training | December 2025 & January 2026 | Portland, OR
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Project 2221

145 Warren St Unit 2

Sustainable Comfort, Inc.

Newton, Massachusetts

Building Function

Single-Family
Project Type

New Construction
ASHRAE Climate Zone

5A - Cool - Humid
Construction Completion

2024
Status

Certified
INT. Conditioned Floor Area

1874 ft²

Core Project Team

Phius CPHC (Lead)

Michelle Tinner
Phius Certified Rater

Margaret Dean
Phius CPHC (Secondary)

James Moriarty
Project Submitter

James Moriarty

Project Information

- Developer
  
  Civico & Norton Point Development
- Architecture Planning
  
  Sustainable Comfort, Inc.
- Building Owner
  
  145 Warren Street Unit 2
- Mechanical Systems Designer
  
  WV Engineering Associates, PA
- Construction Company
  
  Sustainable Comfort, Inc.
- Building Function
  
  Single-Family
- Project Type
  
  New Construction
- Construction Type
  
  Wood-Frame
- Number of Units
  
  1
- Number of Stories
  
  3
- Program Version
  
  Phius CORE 2021
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  1874 ft²
- Market Category
  
  Market Rate
- Project Delivery Method
  
  Design Build (DB)
- Status
  
  Certified
- Design Certification
  
  May 3, 2023
- Final Certification
  
  July 15, 2025
- Construction Completion
  
  2024
- ASHRAE Climate Zone
  
  5A - Cool - Humid
- Region
  
  Northeast

Performance

- Annual Heating Demand
  
  7.96 kBTU/ft².yr
- Annual Cooling Demand
  
  3.11 kBTU/ft².yr
- Peak Heating Load
  
  5.31 kBTU/ft².yr
- Peak Cooling Load
  
  2.57 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  17.25 kBTU/ft².yr
- Site Energy Use Index (w/Renewables)
  
  11.42 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  4263 kWh/person.yr
- Source Energy (Residential w/Renewables)
  
  2748 kWh/person.yr
- HERS Rating
  
  33
- HERS Rating w/Renewables
  
  20
- Air Tightness (per enclosure area)
  
  0.052 CFM50/ft²

Enclosure

- Facade Type
  
  Fiber Cement
- Window Manufacturer 1
  
  Kohltech

Systems & Equipment

- Ventilation System Manufacturer
  
  Minotair
- Measured Ventilation Fan Efficiency
  
  0.54 W/cfm
- Heating System Manufacturer
  
  Mitsubishi
- Cooling System Manufacturer
  
  Mitsubishi
- Hot Water System Manufacturer
  
  Rheem
- Renewable Energy Type(s)
  
  On-Site PV
- Renewable Energy Annual Production
  
  4581 kWh/yr
- Renewable Energy System Size
  
  3.44kW